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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Understand the conceptual context of spatial visualisations and presentation 
SAQA US ID UNIT STANDARD TITLE
258739  Understand the conceptual context of spatial visualisations and presentation 
ORIGINATOR
SGB Geographical Information Sciences 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 12 - Physical Planning and Construction Physical Planning, Design and Management 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 6  Level TBA: Pre-2009 was L6  10 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2015-07-01  2018-06-30  SAQA 10105/14 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2019-06-30   2022-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard has been developed for the GIS occupational area and is intended for persons who aim to achieve career advancement by gaining GIS skills leading to a qualification based on unit standards. A person who has successfully completed this unit standard will be able to produce an appropriate thematic map.

A person credited with this unit standard is able to:
  • Understand and explain the history of cartography and visualisation in the context of GIS&T. (Cartographic symbolization and visualization)
  • Explain and apply Cartographic generalization.
  • Explain and apply Cartographic symbolization.
  • Demonstrate the use of visual variables and their effectiveness in signifying the three levels of measurement of data. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The credit calculation is based on the assumption that learners are already competent in the following:
  • Mathematics at NQF Level 5.
  • Communication at NQF Level 5. 

  • UNIT STANDARD RANGE 
    Specific range statements are provided in the body of the unit standard where they apply to particular specific outcomes or assessment criteria. 

    Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Understand and explain the history of cartography and visualisation in the context of GIS&T. (Cartographic symbolization and visualization). 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The history of cartography is explained in terms of the concepts of projections, measurements of the earth, and mapping of the earth detail. 

    ASSESSMENT CRITERION 2 
    Scale and purpose is used to explain classification of maps in terms of the range. 
    ASSESSMENT CRITERION RANGE 
    General, thematic, large-scale, small-scale.
     

    SPECIFIC OUTCOME 2 
    Explain and apply Cartographic generalization. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Philosophical objectives of generalization in the context of cartography. 
    ASSESSMENT CRITERION RANGE 
    Spatial accuracy, attribute accuracy, aesthetic quality, logical hierarchy, rules and complexity of map/database.
     

    ASSESSMENT CRITERION 2 
    Fundamental operations of generalization in the context of cartography. 
    ASSESSMENT CRITERION RANGE 
    Smoothing, merging, exaggeration, enhancement, amalgamation, refinement, typification.
     

    SPECIFIC OUTCOME 3 
    Explain and apply Cartographic symbolization. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    The relationships between geographical data types, measurement scale, cartographic symbol and the visual variables are used to fully understand cartographic symbolization. 
    ASSESSMENT CRITERION RANGE 
    Point, line, area, volume, nominal, ordinal, interval, ratio, shape, colour, pattern, value, size.
     

    ASSESSMENT CRITERION 2 
    The measurement level of data is considered for symbolozation purposes. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 3 
    Fundamental visual variables used for cartographic symbols. 
    ASSESSMENT CRITERION RANGE 
    Point, Line, Area.
     

    SPECIFIC OUTCOME 4 
    Demonstrate the use of visual variables and their effectiveness in signifying the three levels of measurement of data. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Position is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 2 
    Size is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 3 
    Value is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 4 
    Texture is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 5 
    Hue is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 6 
    Orientation is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     

    ASSESSMENT CRITERION 7 
    Shape is understood in the context of Point features, Line features and area features and it's effectiveness in signifying the three levels of measurement of data. 
    ASSESSMENT CRITERION RANGE 
    Nominal data, Ordinal data, Interval data/Ratio data.
     


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines and the agreed ETQA procedures. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
    Essential embedded knowledge is dealt with under the specific outcomes section where "Demonstrate Knowledge and Understanding" is required. 

    UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Solve problems. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others as a member of a team/group/organisation or community. 

    UNIT STANDARD CCFO ORGANISING 
    Organise and manage oneself and one`s activities responsibly and effectively. 

    UNIT STANDARD CCFO COLLECTING 
    Collect, organise and critically evaluate information. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communicate effectively using visual, mathematics and language skills in the modes of oral and written presentations. 

    UNIT STANDARD CCFO SCIENCE 
    Use science and technology effectively and critically (showing responsibility towards the environment and health of others). 

    UNIT STANDARD CCFO DEMONSTRATING 
    Display an understanding of the world as a set of related systems. 

    UNIT STANDARD CCFO CONTRIBUTING 
    Contribute to the full development of each learner and the social and economic development of society at large. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    Notes to Assessors:
  • See Bossler, John.D. et al, 2002, Manual of Geospatial Science and Technology. 

  • QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  63689   Bachelor of Arts: Geographical Information Science  Level 6  Level TBA: Pre-2009 was L6  Reregistered  2018-06-30   
    Elective  63711   Bachelor of Geographical Information Science (GISc)  Level 7  NQF Level 07  Reregistered  2018-06-30   


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    NONE 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.